Adobe CS4: File-Format Module Cannot Parse the File

Hi everyone at TechyV!
I am unfamiliar with this error in Photoshop CS4.
I didn't find resources for it on the web so I thought I'd ask it in a forum instead.
Perhaps someone has encountered and fixed this glitch.
If you can share anything about this error, thank you very much!

Adobe Photoshop CS4 Extended
Could not complete your request because the file-format module cannot parse the file.
